The Growlink relayLINK (GL-LINK-RELAY) is a 6-channel dry-contact relay module designed for commercial cultivation environments. It provides six independently controllable, normally-open outputs for automating 24VAC and other low-voltage climate equipment such as HVAC units, humidifiers, dehumidifiers, air handlers, fan coil units, and irrigation solenoids through the Growlink LINKS ecosystem and Growlink OS.
• SKU: GL-LINK-RELAY
• Relay Channels: 6 × Normally Open (Form A) dry contacts
• Relay Contact Rating: 3.5A; 1A at 24VAC/DC per channel
• Control Signal Voltage: 24VAC / 24VDC low-voltage
• Input Power: 9–24VDC, 1.5A via HUB RJ-45
• HUB Connection: RJ-45 for power and data
• Control Method: Growlink OS through Growlink LINKS HUB
• Channel Control: Independently controllable
• Automation: Individual schedules, sensor thresholds, and staged HVAC control
• Typical Applications: HVAC, humidifiers, dehumidifiers, air handlers, fan coil units, irrigation solenoids, and other equipment with external low-voltage control terminals
• Sensor Integration: Can operate alongside canopyLINK or climaLINK modules for sensor-responsive climate control
• Status Indicators: Individual front-panel relay-status LEDs plus HUB power/communication LED
• Setup: Dedicated setup button for HUB readdressing
• Operating Temperature: 50–122°F (10–50°C)
• Operating Humidity: 0–75% RH, non-condensing
• Mounting: Wall mount; hardware included
• DIN Rail: Optional DIN rail mounting kit
• Standalone Operation: No — requires a Growlink LINKS HUB
• Line-Voltage Switching: Not supported; an appropriately rated external contactor/relay is required for 120V/240V loads
• Origin: Made in the USA
Key Advantage: The relayLINK adds six independently controlled low-voltage relay channels to a Growlink LINKS installation, allowing existing 24VAC climate equipment to be automated through Growlink OS without replacing the equipment.